Exponential Review

The following function represents a bank account. 
g(x) = 200(1.25)^x
What was the initial dollar amount put in the bank?

• $200

• $1.25

• $0.25

• $2.00

Determine the population for year 3 of the table.

• 8.2

• 8.4

• 8.64

• 9

This is an example of:

(a)  

• Exponential Growth

• Linear Growth

• Linear Decay

• Exponential Decay

Which of the following exponential functions represents an initial value of 1780 and a growth of 18% for x years?​

Select all the equations that represent exponential decay.

Please label each part of the function with the appropriate descricription.

a

b

c

d

time

final value

initial value

growth/decay factor

What is the growth rate in the problem below? f(t) = 300(1.05)^t

• 300

• 1.05

• t

• y

A new savings account is opened with $400 and gains 3% every year. What is the exponential function?

• f(x)=400(1+3)^x

• f(x)=400(1-0.03)^x

• f(x)=400(1+0.03)^x

• f(x)=400(0.03)^x

The value of a car is $15,000 and depreciates at a rate of 8% per year. What is the exponential equation?

• y=8(15,000)^x

• y=15,000(1.08)^x

• y=15,000(0.92)^x

• y=15,000(0.08)^x

What type of pattern do exponential functions have?

• Adds by the same number every time

• Multiplies by the same number every time

• Square roots all the inputs

• Squares all the inputs